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Modified mean curvature flow of entire locally Lipschitz radial graphs in hyperbolic space

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Listed:
  • Patrick Allmann
  • Longzhi Lin
  • Jingyong Zhu

Abstract

The Asymptotic Plateau Problem asks for the existence of smooth complete hypersurfaces of constant mean curvature with prescribed asymptotic boundary at infinity in the hyperbolic space Hn+1. The modified mean curvature flow (MMCF) ∂F∂t=(H−σ)ν,σ∈(−n,n),was firstly introduced by Xiao and the second author a few years back in [15], and it provides a tool using geometric flow to find such hypersurfaces with constant mean curvature in Hn+1. Similar to the usual mean curvature flow, the MMCF is the natural negative L2‐gradient flow of the area‐volume functional I(Σ)=A(Σ)+σV(Σ) associated to a hypersurface Σ. In this paper, we prove that the MMCF starting from an entire locally Lipschitz continuous radial graph exists and stays radially graphic for all time. In general one cannot expect the convergence of the flow as it can be seen from the flow starting from a horosphere (whose asymptotic boundary is degenerate to a point).

Suggested Citation

  • Patrick Allmann & Longzhi Lin & Jingyong Zhu, 2020. "Modified mean curvature flow of entire locally Lipschitz radial graphs in hyperbolic space," Mathematische Nachrichten, Wiley Blackwell, vol. 293(5), pages 861-878, May.
    • Handle: RePEc:bla:mathna:v:293:y:2020:i:5:p:861-878
    DOI: 10.1002/mana.201800432
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